This category encompasses native vascular plants that play crucial roles in their respective ecosystems and face varying degrees of threat due to environmental changes, habitat destruction, and human activities. It refers specifically to those species ranked by the International Union for Conservation of Nature (IUCN) as endangered, vulnerable, rare, or with uncertain conservation status. The assessment includes species that could become endangered without proactive management and those that have shown signs of recovery. Monitoring these plant species is vital not only for preserving biodiversity but also for maintaining ecosystem services such as carbon sequestration, soil preservation, and pollinator support. Recognizing and protecting these plants can help foster resilience in ecosystems as they adapt to a changing climate. Source: